C63s w205 stage 1 tune
think they said ill go from 510hp to 575hp (so nothing maxed out crazy stage 1 tune)
but they say i should take a stage 1 tune of my transmisson aswell? Do i need to do this? And is it safe to tune just the engine?
I have a FL model (9 speed) with ECU tuning (stage 2), drove it for half a year, then did a TCU tune recently.
There isn't really any appreciable difference in performance, shifts just feel firmer and marginally faster. I can't speak on the 7 speed, maybe there would be a bigger difference for that transmission.




